Light pollution
Done by:
Rayan Ghuneim
Fayez Taja
Youssef Nadim
Khalid Sabsabi
Ahmad Alwan
12-BSC
Lets discuss what is light pollution!
ï‚—Light pollution is the presence of unwanted,
inappropriate, or excessive artificial lighting. In a
descriptive sense, the term light pollution refers to
the effects of any poorly implemented lighting,
during the day or night.
What are the main causes of light
pollution?
ï‚—The primary cause of light pollution is outdoor
lights that emit light upwards or sideways. Any
light that escapes upward, except where a tree
or building may be blocking it, will scatter
throughout the atmosphere and brighten the
night sky, thereby diminishing the view of it.
Examples of light pollution:
ï‚—One of the most light
polluted cities in the
world is Hong Kong. The
wasteful light emitted
would reflect and
spread upward directly
and lead to the brighter
night and a drop of stars
visible in the sky.
Ways of solving light pollution:
ï‚—#1 Turn Off Lights When
Not in Use
ï‚—#2 Use Fewer Lights
When Inside
ï‚—#3 Keep the Blinds and
Drapes Closed at Night
ï‚—#4 Avoid Driving at Night
ï‚—#5 Turn Off All Lights
When Going to Sleep
Advantages of light pollution:
ï‚—One of the most significant positive effects is that
light pollution helps birds find food at night. When
birds migrate, they are unfamiliar with local food
sources, typically, these birds land at night and fly
during the day.
Disadvantages of light pollution:
ï‚—Light pollution is excessive, misdirected, or
obtrusive artificial (usually outdoor) light. Too
much light pollution has consequences: it
washes out starlight in the night sky, interferes
with astronomical research, disrupts
ecosystems, has adverse health effects and
wastes energy.
Light pollution estimation in Dubai.
ï‚—The light pollution in Dubai is significant, and it is
estimated to be one of the highest in the world.
The sky over the city is always glowing with
artificial light, and it is difficult to see stars or any
other celestial objects .
INTERVIEW!
a simpleinter view about light pollution
Thank you for listening ;)
Rayan Ghuneim
Fayez Taja
Youssef Nadim
Khalid Sabsabi
Ahmad Alwan.